AD5292 Analog Devices, AD5292 Datasheet - Page 2

• Manufacturer Part Number: AD5292
• Description: (AD5291 / AD5292) Digital Potentiometer
• Manufacturer: Analog Devices

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AD5291/AD5292
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 9
Pin Configuration and Function Descriptions ........................... 10
Typical Performance Characteristics ........................................... 11
Test Circuits ..................................................................................... 17
Theory of Operation ...................................................................... 18
REVISION HISTORY
5/09—Revision 0: Initial Version
Electrical Characteristics—AD5291 .......................................... 3
Resistor Performance Mode Code Range—AD5291 ............... 4
Electrical Characteristics—AD5292 .......................................... 5
Resistor Performance Mode Code Range—AD5292 ............... 6
Interface Timing Specifications .................................................. 7
Timing Diagrams .......................................................................... 8
Thermal Resistance ...................................................................... 9
ESD Caution .................................................................................. 9
Serial Data Interface ................................................................... 18
Shift Register ............................................................................... 18
RDAC Register ............................................................................ 18
Rev. 0 | Page 2 of 28
Applications Information .............................................................. 24
Outline Dimensions ....................................................................... 26
20-TP Memory ........................................................................... 19
Write Protection ......................................................................... 19
Basic Operation .......................................................................... 20
20-TP Readback and Spare Memory Status ........................... 20
Shutdown Mode ......................................................................... 21
Resistor Performance Mode ...................................................... 21
Reset ............................................................................................. 21
Daisy-Chain Operation ............................................................. 21
RDAC Architecture .................................................................... 21
Programming the Variable Resistor ......................................... 21
Programming the Potentiometer Divider ............................... 22
EXT_CAP Capacitor .................................................................. 22
Terminal Voltage Operating Range ......................................... 23
High Voltage DAC ...................................................................... 24
Programmable Voltage Source with Boosted Output ........... 24
High Accuracy DAC .................................................................. 24
Variable Gain Instrumentation Amplifier .............................. 24
Audio Volume Control .............................................................. 25
Ordering Guide .......................................................................... 26